The root of most fallacies in economics: Forgetting to ask WHY prices change

Even though I am a Dane and work for a Danish bank I tend to not follow the Danish media too much – after all my field of work is international economics. But I can’t completely avoid reading Danish newspapers. My greatest frustration when I read the financial section of Danish newspapers undoubtedly is the tendency to reason from different price changes – for example changes in the price of oil or changes in bond yields – without discussing the courses of the price change.

The best example undoubtedly is changes in (mortgage) bond yields. Denmark has been a “safe haven” in the financial markets so when the euro crisis escalated in 2011 Danish bond yields dropped dramatically and short-term government bond yields even turned negative. That typically triggered the following type of headline in Danish newspapers: “Danish homeowners benefit from the euro crisis” or “The euro crisis is good news for the Danish economy”.

However, I doubt that any Danish homeowner felt especially happy about the euro crisis. Yes, bond yields did drop and that cut the interest rate payments for homeowners with floating rate mortgages. However, bond yields dropped for a reason – a sharp deterioration of the growth outlook in the euro zone due to the ECB’s two unwarranted interest rate hikes in 2011. As Denmark has a pegged exchange rate to the euro Denmark “imported” the ECB’s monetary tightening and with it also the prospects for lower growth. For the homeowner that means a higher probability of becoming unemployed and a prospect of seeing his or her property value go down as the Danish economy contracted. In that environment lower bond yields are of little consolation.

Hence, the Danish financial journalists failed to ask the crucial question why bond yields dropped. Or said in another way they failed to listen to the advice of Scott Sumner who always tells us not to reason from a price change.

This is what Scott has to say on the issue:

My suggestion is that people should never reason from a price change, but always start one step earlier—what caused the price to change.  If oil prices fall because Saudi Arabia increases production, then that is bullish news.  If oil prices fall because of falling AD in Europe, that might be expansionary for the US.  But if oil prices are falling because the euro crisis is increasing the demand for dollars and lowering AD worldwide; confirmed by falls in commodity prices, US equity prices, and TIPS spreads, then that is bearish news.

I totally agree. When we see a price change – for example oil prices or bond yields – we should ask ourselves why prices are changing if we want to know what macroeconomic impact the price change will have. It is really about figuring out whether the price change is caused by demand or supply shocks.

The euro strength is not necessarily bad news – more on the currency war that is not a war

A very good example of this general fallacy of forgetting to ask why prices are changing is the ongoing discussion of the “currency war”. From the perspective of some European policy makers – for example the French president Hollande – the Bank of Japan’s recent significant stepping up of monetary easing is bad news for the euro zone as it has led to a strengthening of the euro against most other major currencies in the world. The reasoning is that a stronger euro is hurting European “competitiveness” and hence will hurt European exports and therefore lower European growth.

This of course is a complete fallacy. Even ignoring the fact that the ECB can counteract any negative impact on European aggregate demand (the Sumner critique also applies for exports) we can see that this is a fallacy. What the “currency war worriers” fail to do is to ask why the euro is strengthening.

The euro is of course strengthening not because the ECB has tightened monetary policy but because the Bank of Japan and the Federal Reserve have stepped up monetary easing.

With the Fed and the BoJ significantly stepping up monetary easing the growth prospects for the largest and the third largest economies in the world have greatly improved. That surely is good news for European exporters. Yes, European exporters might have seen a slight erosion of their competitiveness, but I am pretty sure that they happily will accept that if they are told that Japanese and US aggregate demand – and hence imports – will accelerate strongly.

Instead of just looking at the euro rate European policy makers should consult more than one price (the euro rate) and look at other financial market prices – for example European stock prices. European stock prices have in fact increased significantly since August-September when the markets started to price in more aggressive monetary easing from the Fed and the BoJ. Or look at bond yields in the so-called PIIGS countries – they have dropped significantly. Both stock prices and bond yields in Europe hence are indicating that the outlook for the European economy is improving rather than deteriorating.

The oil price fallacy – growth is not bad news, but war in the Middle East is

A very common fallacy is to cry wolf when oil prices are rising – particularly in the US. The worst version of this fallacy is claiming that Federal Reserve monetary easing will be undermined by rising oil prices.

This of course is complete rubbish. If the Fed is easing monetary policy it will increase aggregate demand/NGDP and likely also NGDP in a lot of other countries in the world that directly or indirectly is shadowing Fed policy. Hence, with global NGDP rising the demand for commodities is rising – the global AD curve is shifting to the right. That is good news for growth – not bad news.

Said another way when the AD curve is shifting to the right – we are moving along the AS curve rather than moving the AS curve. That should never be a concern from a growth perspective. However, if oil prices are rising not because of the Fed or the actions of other central banks – for example because of fears of war in the Middle East then we have to be concerned from a growth perspective. This kind of thing of course is what happened in 2011 where the two major supply shocks – the Japanese tsunami and the revolutions in Northern Africa – pushed up oil prices.

At the time the ECB of course committed a fallacy by reasoning from one price change – the rise in European HICP inflation. The ECB unfortunately concluded that monetary policy was too easy as HICP inflation increased. Had the ECB instead asked why inflation was increasing then we would likely have avoided the rate hikes – and hence the escalation of the euro crisis. The AD curve (which the ECB effectively controls) had not shifted to the right in the euro area. Instead it was the AS curve that had shifted to the left. The ECB’s failure to ask why prices were rising nearly caused the collapse of the euro.

The money supply fallacy – the fallacy committed by traditional monetarists 

Traditional monetarists saw the money supply as the best and most reliable indicator of the development in prices (P) and nominal spending (PY). Market Monetarists do not disagree that there is a crucial link between money and prices/nominal spending. However, traditional monetarists tend(ed) to always see the quantity of money as being determined by the supply of money and often disregarded changes in the demand for money. That made perfectly good sense for example in the 1970s where the easy monetary policies were the main driver of the money supply in most industrialized countries, but that was not the case during the Great Moderation, where the money supply became “endogenous” due to a rule-based monetary policies or during the Great Recession where money demand spiked in particularly the US.

Hence, where traditional monetarists often fail – Allan Meltzer is probably the best example today – is that they forget to ask why the quantity of money is changing. Yes, the US money base exploded in 2008 – something that worried Meltzer a great deal – but so did the demand for base money. In fact the supply of base money failed to increase enough to counteract the explosion in demand for US money base, which effectively was a massive tightening of US monetary conditions.

So while Market Monetarists like myself certainly think money is extremely important we are skeptical about using the money supply as a singular indicator of the stance of monetary policy. Therefore, if we analyse money supply data we should constantly ask ourselves why the money supply is changing – is it really the supply of money increasing or is it the demand for money that is increasing? The best way to do that is to look at market data. If market expectations for inflation are going up, stock markets are rallying, the yield curve is steepening and global commodity prices are increasing then it is pretty reasonable to assume global monetary conditions are getting easier – whether or not the money supply is increasing or decreasing.

Finally I should say that my friends Bob Hetzel and David Laidler would object to this characterization of traditional monetarism. They would say that of course one should look at the balance between money demand and money supply to assess whether monetary conditions are easy or tight. And I would agree – traditional monetarists knew that very well, however, I would also argue that even Milton Friedman from time to time forgot it and became overly focused on money supply growth.

And finally I happily will admit committing that fallacy very often and I still remain committed to studying money supply data – after all being a Market Monetarist means that you still are 95% old-school traditional monetarist at least in my book.

PS maybe the root of all bad econometrics is the also forgetting to ask WHY prices change.

Patri Friedman on Market Monetarism

Here is Patri Friedman on his blog “Patri’s Peripatetic Peregrinations”:

“I sent a friend an intro to market monetarism (a modern, blogosphere-inspired adjustment to the traditional monetarism my grandfather helped create). He was surprised I believed that printing money could be good, rather than agreeing with the Austrians.”

I am happy to see that Patri has read my paper on Market Monetarism.

There is of course nothing wrong in thinking that “printing money could be good” (under certain circumstances). In fact this is completely in line with what Patri’s grandfather Milton Friedman argued in terms of the Great Depression and the Japanese crisis.

Patri in his post also discusses how a “helicopter drop” could happen in a world of digital cash. Interestingly enough this discussion is similar to a recent internal Market Monetarist debate between Nick Rowe, Bill Woolsey and Scott Sumner about whether money is a medium of exchange or a medium of account. See for example here, here and here. Kurt Schuler also has contributed to the discussion. Finally Miles Kimball similarly has a very interesting post on the case for electronic money.

Patri’s discussion of digital cash to some extent also relates to my own discussion of monetary reform in Africa and the development of mobile based money (See for example here, herehere and here).

Anyway, I am happy to Patri seems to be showing some sympathy for Market Monetarism.

HT Lasse Birk Olesen

Rerun: Daylight saving time and NGDP targeting

Today I got up one hour later than normal. The reason is the same as for most other Europeans this morning – the last Sunday of October – we move our clocks back one hour due to the end of Daylight saving time (summertime).

That reminded me of Milton Friedman’s so-called Daylight saving argument for floating exchange rates. According to Friedman, the argument in favour of flexible exchange rates is in many ways the same as that for summertime. Instead of changing the clocks to summertime, everyone could instead “just” change their behaviour: meet an hour later at work, change programme times on the TV, let buses and trains run an hour later, etc. The reason we do not do this is precisely because it is easier and more practical to put clocks an hour forward than to change everyone’s behaviour at the same time. It is the same with exchange rates, one can either change countless prices or change just one – the exchange rate.

There is a similar argument in favour of NGDP level targeting. Lets illustrate it with the equation of exchange.

M*V=P*Y

P*Y is of course the same as NGDP the equation of exchange can also be written as

M*V=NGDP

What Market Monetarists are arguing is that if we hold NGDP constant (or it grows along a constant path) then any shock to velocity (V) should be counteracted by an increase or decrease in the money supply (M).

Obviously one could just keep M constant, but then any shock to V would feed directly through to NGDP, but NGDP is not “one number” – it is in fact made up of countless goods and prices. So an “accommodated” shock to V in fact necessitates changing numerous prices (and volumes for the matter). By having a NGDP level target the money supply will do the adjusting instead and no prices would have to change. Monetary policy would therefore by construction be neutral – as it would not influence relative prices and volumes in the economy.

This is of course also similar to Milton Friedman’s analogy of monetary policy being like setting a thermostat (HT David Beckworth).

The conclusion therefore is that when you read Friedman’s “The Case for Floating Exchange Rates” then try think instead of “The Case for NGDP Level Targeting” – it is really the same story.

See my posts on Friedman’s arguments for floating exchange rates:

Milton Friedman on exchange rate policy #1
Milton Friedman on exchange rate policy #2
Milton Friedman on exchange rate policy #3

PS Do you remember reading this before then you are right – this is a rerun of what I wrote exactly a year ago.

Ben maybe you should try “policy futures”?

My readers will know that I think that the Federal Reserve has taken a step in the right direction with its latest policy action. I do think that the fed finally after four years of failure is moving towards a more rule based monetary policy. However, it is certainly far from perfect and there is still a lot of risks involved.

The Minutes from the latest FOMC meeting was published yesterday and it is clear that the FOMC is well-aware that it needs to address it’s communication problem. That’s positive. However, it is also clear that the fed still don’t have a proper communication policy in place and even though we are moving towards a more rule based monetary policy it still not completely clear what the rule is and it is not entire clear how it should be implemented. We are still far away from Milton Friedman’s ideal of having a computer control monetary policy. However, I think that the fed should move in the direction of that ideal and it could start the journey toward this goal by introducing what we could call “policy futures”.

It is obvious that the fed is aware that there is problems with the present forecasting set-up within the fed. The key problem is one that every central bank in the world is facing – should the central bank forecast that it will fail? That is effectively what the fed has been doing so far when it is saying that it expect a fragile and weak recovery.

Scott Sumner has suggested that monetary policy should be “pegged” to a NGDP future, which would mean that the money base is increased or decreased continuously as market expectations for future level NGDP changes. This is basically the Friedman ideal of a computer – or rather the market – controlling monetary policy. However, a less radical plan where futures are “just” used for policy guidance and forecasting is also possible and that is what I suggest that the fed should look at.

There are some very clear advantages of using the market to forecast. First of all the fed would not have to know the “real model” of the US economy. Second the forecasts would be unbiased. Third the fed would have real-time forecasts of its policy variables.

It is pretty clear that the fed is now moving towards some kind of Evans rule where changes in the money base is a function of unemployment and inflation. We don’t know fed’s reaction function, but a version of the Evans rules could take the following form:

(1)    ∆b = α(U-U*)-β(π-πT)

Where ∆b is the change in the money base, α and β are coefficients, U is unemployment and U* is the fed’s unemployment target or the structural unemployment, π is inflation and πT is the inflation target.

There plenty of reasons to be skeptical about the fact that the fed is so clearly targeting real variables (employment/unemployment). However, by using policy futures it might be possible to greatly reduce these risks.

I imagine that the fed set up a futures or an options market on for example inflation, employment/unemployment and obviously NGDP on different time horizons.

Let’s say that the fed has the target of reducing unemployment to 6%, but also want to maintain long term price stability (keeping inflation around 2%). If structural unemployment is higher than 6% then that would obviously not be possible – and if the fed tried to push unemployment below 6% then inflation would explode. A policy future would greatly help assess this risk.

Hence, the fed could issue a put option that would be knocked in if unemployment dropped by 6% and inflation was below 2 or 3% at some future date – for example January 1 2013. Such an option would give an assessment about whether it is likely that the fed will hit it’s policy objectives. If the market assess that structural unemployment is above 6% then that would be reflected in the pricing of the put option.

If the fed issued a number of different policy futures and options on the key policy objectives it could get the markets’ assessment of whether it is on the right track in terms of fulfilling it’s monetary policy objectives or not by cross-checking the pricing of different policy futures.

Such policy futures could also greatly help the fed in it’s communication with the markets and it would probably also be much easier to get consensus on the FOMC about the possible risk to monetary policy.

The fed would very easily be able to set up such policy futures markets, but the informational gains would in my view be tremendous. The only “problem” would that the fed would need fewer economists to do forecasting…

Related posts:
Yet another argument for prediction markets: “Reputation and Forecast Revisions: Evidence from the FOMC”
Benn & Ben – would prediction markets be of interest to you?
Prediction markets and government budget forecasts
Central banks should set up prediction markets
Markets are telling us where NGDP growth is heading
Scott’s prediction market
Robin Hanson’s brilliant idea for central bank decision-making

BYU radio interview with Christensen

Here is a recent interview I did with BYU radio while I recently visited Brigham Young University – we talk about the European crisis, but mostly about Milton Friedman.

Bernanke says Friedman would have approved of Fed’s recent actions – I think is he more or less right

Ben Bernanke today in a speech further tried to explain the Fed’s recent policy actions. As Scott Sumner says in a comment: “The Fed seems to be getting a bit more market monetarist each day”. That might be slightly too optimistic of what is going on at the Fed and I remain frustrated about about two things in how Bernanke is communicating. First he is focusing on real variables (the labour market) rather than on nominal variables. Second, his discussion of the monetary transmission mechanism is overly focused on yields and interest rates rather than on money creation. That said, I continue to believe that the Fed is moving in the right direction. Bernanke’s speech today is further prove of that and I must say I feel increasingly optimistic that this will pull the US economy out of the crisis.

I am particularly encouraged by the following comments from Bernanke (my bold):

“In the category of communications policy, we also extended our estimate of how long we expect to keep the short-term interest rate at exceptionally low levels to at least mid-2015. That doesn’t mean that we expect the economy to be weak through 2015. Rather, our message was that, so long as price stability is preserved, we will take care not to raise rates prematurely. Specifically, we expect that a highly accommodative stance of monetary policy will remain appropriate for a considerable time after the economy strengthens. We hope that, by clarifying our expectations about future policy, we can provide individuals, families, businesses, and financial markets greater confidence about the Federal Reserve’s commitment to promoting a sustainable recovery and that, as a result, they will become more willing to invest, hire and spend.”

Bernanke is beginning more clearly to spell out how his monetary policy rule looks like. This is what is needed is he whats to get the help from the Chuck Norris effect to reestablish nominal stability and pull the US economy out of this crisis.

Interestingly enough Bernanke was asked after his speech today whether he thinks Friedman would have supported the fed’s recent actions. Bernanke was stated that he was a “big fan” of Milton Friedman and then said that “I think he would’ve supported what we are doing”. I think Bernanke is broadly speaking correct. I am very sure that Friedman would have had the same reservation that I note about, but I am also pretty sure that he would have made the same recommendation regarding the US economy today as he did regarding the Japanese economy in 1997:

“The answer is straightforward: The Bank of Japan can buy government bonds on the open market, paying for them with either currency or deposits at the Bank of Japan, what economists call high-powered money. Most of the proceeds will end up in commercial banks, adding to their reserves and enabling them to expand their liabilities by loans and open market purchases. But whether they do so or not, the money supply will increase.

There is no limit to the extent to which the Bank of Japan can increase the money supply if it wishes to do so. Higher monetary growth will have the same effect as always. After a year or so, the economy will expand more rapidly; output will grow, and after another delay, inflation will increase moderately. A return to the conditions of the late 1980s would rejuvenate Japan and help shore up the rest of Asia.

Japan’s recent experience of three years of near zero economic growth is an eerie, if less dramatic, replay of the great contraction in the United States. The Fed permitted the quantity of money to decline by one-third from 1929 to 1933, just as the Bank of Japan permitted monetary growth to be low or negative in recent years. The monetary collapse was far greater in the United States than in Japan, which is why the economic collapse was far more severe. The United States revived when monetary growth resumed, as Japan will.

The Fed pointed to low interest rates as evidence that it was following an easy money policy and never mentioned the quantity of money. The governor of the Bank of Japan, in a speech on June 27, 1997, referred to the “drastic monetary measures” that the bank took in 1995 as evidence of “the easy stance of monetary policy.” He too did not mention the quantity of money. Judged by the discount rate, which was reduced from 1.75 percent to 0.5 percent, the measures were drastic. Judged by monetary growth, they were too little too late, raising monetary growth from 1.5 percent a year in the prior three and a half years to only 3.25 percent in the next two and a half.

After the U.S. experience during the Great Depression, and after inflation and rising interest rates in the 1970s and disinflation and falling interest rates in the 1980s, I thought the fallacy of identifying tight money with high interest rates and easy money with low interest rates was dead. Apparently, old fallacies never die.”

James Pethokoukis uses the same quote in his comment on Bernanke – and I have used the quote earlier in discussing what Friedman would have said about European monetary policy. While I think that the situation in the euro zone today is very similar to the situation in Japan 1997 I would also argue that the US economy is in somewhat better shape today that Japan in the late 1990s. This of course means that some caution is warranted regarding monetary easing in the US, but to me at least the risks on US inflation still remain on the downside.

Again see the Friedman’s quote above and what Bernanke said today (quoted from Joe Weisenthal on Business Insider):

“We didn’t allow the fact that interest rates were very low to fool us into thinking that monetary policy was accommodative enough.”

It is very nice to see that Bernanke now finally is recognizing this. I would hope a all of his central banking colleagues around the world – particularly in Europe would understand this.

Finally I don’t think the Fed is all there yet. NGDP level targeting is much preferable to what the Fed is now trying to implement. Furthermore, I would hope Bernanke and his colleagues would try to get a bit more of a monetarist perspective on the monetary transmission mechanism instead of the continued focus on interest rates.

PS George Selgin has a slightly related blog post on freebanking.org discussing Austrians’ and Market Monetarists’ view of “Intermediate Spending Booms”

Update: Matt O’Brien has an excellent piece on Narayana Kocherlakota amazing transformation,

The Hetzel-Ireland Synthesis

I am writing this while I am flying with Delta Airlines over the Atlantic. I will be speaking about the European crisis at a seminar on Friday at Brigham Young University in Provo, Utah.

I must admit that it has been a bit of a challenge to blog in recent weeks. Mostly because both my professional and my private life have been demanding. After all blogging is something I do in my spare time. So even though I wanted to blog a lot about the latest FOMC decision and the world in general I have simply not been able to get out the message. Furthermore – and this will interest many of my readers – Robert Hetzel and his wonderful wife Mary visited Denmark last week. Bob had a very busy schedule – and so did I as I attended all of Bob’s presentations in Copenhagen that week. Bob told me before his presentations that I would not be disappointed and that none of the presentations would be a “rerun”. Bob is incredible – all of this presentations covered different countries and topics. Obviously there was a main theme: The central banks failed.

I must admit after three days of following Bob and having the privilege to hear him talk about the University of Chicago in 1970s and his stories about Milton Friedman I simply had an mental “overload”. I had a very hard time expressing my monetary policy views – and the major policy turnaround at the Fed didn’t make it easier.

Anyway I feel that I have to share some of Bob’s incredible insight after his visit to Copenhagen, but I also feel that whatever I write will not do justice to his views.

So I have chosen a different way of doing it. Instead of telling you what Bob said in Copenhagen I will try to tell the story about how (a clever version of) New Keynesian economics and Monetarism could come to similar conclusions – and that merger is really Market Monetarism.

Why is that? I have for some time wanted to write something about a couple of new and very interesting, but slightly technical paper by Mike Belongia and Peter Ireland. Both Mike and Peter have a monetarist background, but Peter has done a lot work in the more technical New Keynesian tradition. And that is what I will focus on here, but I promise to return to Mike’s and Peter’s other papers.

The other day my colleague and good friend Jens Pedersen sent me a paper Peter wrote in 2010 – “A New Keynesian Perspective on the Great Recession”. When I read the paper I realised how I was going to write the story about Bob’s visit to Copenhagen.

Bob’s and Peter’s explanations of the Great Recession are exactly the same – just told within slightly different frameworks. Bob first wrote a piece on the Great Recession it in 2009 and Peter wrote his piece in 2010.

Peter and Bob are friends and both have been at the Richmond fed so it is not totally surprising that their stories of what happened in 2008-9 are rather similar, but I nonetheless think that we can learn quite a bit from how these two great intellects think about the crisis.

So what is the common story?

In think we have to go back to Milton Friedman’s Permanent Income Hypothesis (PIH). While at the Richmond Peter while at the Richmond fed in 1995 actually wrote about PIH and how it could be used for forecasting purposes. And one thing I noticed at all of Bob’s presentations in Copenhagen was how he returned to Irving Fisher and the determination of interests as a trade off between consumption today and in the future. Friedman and Fisher in my view are at the core of Bob’s and Peter’s thinking of the Great Recession.

So here is the Peter and Bob story: In 2007-8 the global economy was hit by a large negative supply shock in the form of higher oil prices. That pushed up US inflation and as a consequence US consumers reduced their expectations for their future income – or rather their Permanent Income. With the outlook for Permanent Income worsening interest rates should drop. However, as interest rates hit zero the Federal Reserve failed to ease monetary policy because it was unprepared for a world of zero interest rates. The Fed should of course more aggressively moved to a policy of monetary easing through an increase in the money base. The fed moved in that direction, but it was too late and too little and as a result monetary conditions tightened sharply particularly in late 2008 and during 2009. That can be described within a traditional monetarist framework as Bob do his excellent book “The Great Recession – policy failure or market failure” (on in his 2009 paper on the same topic) or within an intelligent New Keynesian framework as Peter do in his 2010 paper.

Peter uses the term a “New Keyensian Perspective” in his 2010. However, he does not make the mistakes many New Keynesians do. First, for all he realizes that low nominal interest rates is not easy monetary policy. Second, he do not assume that the central bank is always making the right decisions and finally he realizes that monetary policy is not out of ammunition when interest rates hit zero. Therefore, he might as well have called his paper a “New Friedmanite-Fisherian Perspective on the Great Recession”.

Anyway, try read Bob’s book (and his 2009 paper) and Peter’s paper(s). Then you will realize that Milton Friedman and Irving Fisher is all you need to understand this crisis and the way out of is.

I am finalizing this post after having arrived to my hotel in Provo, Utah and have had a night of sleeping – damn time difference. I look forward to some very interesting days at BYU, but I am not sure that I will have much time for blogging.

David Laidler: “Two Crises, Two Ideas and One Question”

The main founding fathers of monetarism to me always was Milton Friedman, Anna Schwartz, Karl Brunner, Allan Meltzer and David Laidler. The three first have all now passed away and Allan Meltzer to some extent seems to have abandoned monetarism. However, David Laidler is still going strong and maintains his monetarist views. David has just published a new and very interesting paper – “Two Crises, Two Ideas and One Question” – in which he compares the Great Depression and the Great Recession through the lens of history of economic thought.

David’s paper is interesting in a number of respects and any student of economic history and history of economic thought will find it useful to read the paper. I particularly find David’s discussion of the views of Allan Meltzer and other (former!?) monetarists interesting. David makes it clear that he think that they have given up on monetarism or as he express it in footnote 18:

“In this group, with which I would usually expect to find myself in agreement (about the Great Recession), I include, among others, Thomas Humphrey, Allan Meltzer, the late Anna Schwartz, and John Taylor, though the latter does not have quite the same track record as a monetarist as do the others.”

Said in another way David basically thinks that these economists have given up on monetarism. However, according to David monetarism is not dead as another other group of economists today continues to carry the monetarist torch – footnote 18 continues:

“Note that I self-consciously exclude such commentators as Timothy Congdon (2011), Robert Hetzel (2012) and that group of bloggers known as the “market monetarists”, which includes Lars Christensen, Scott Sumner, Nicholas Rowe …. – See Christensen (2011) for a survey of their work – from this list. These have all consistently advocated measures designed to increase money growth in recent years, and have sounded many themes similar to those explored here in theory work.”

I personally think it is a tremendous boost to the intellectual standing of Market Monetarism that no other than David Laidler in this way recognize the work of the Market Monetarists. Furthermore and again from a personal perspective when David recognizes Market Monetarist thinking in this way and further goes on to advocate monetary easing as a respond to the present crisis I must say that it confirms that we (the Market Monetarists) are right in our analysis of the crisis and helps my convince myself that I have not gone completely crazy. But read David’s paper – there is much more to it than praise of Market Monetarism.

PS This year it is exactly 30 years ago David’s book “Monetarist Perspectives” was published. I still would recommend the book to anybody interested in monetary theory. It had a profound impact on me when I first read it in the early 1990s, but I must say that when I reread it a couple of months ago I found myself in even more agreement with it than was the case 20 years ago.

Update: David Glasner also comments on Laidler’s paper.

Woodford on NGDP targeting and Friedman

Michael Woodford’s Jackson Hole paper is a goldmine. I haven’t read all of it, but I just want to share this quote:

“Essentially, the nominal GDP target path represents a compromise between the aspiration to choose a target that would achieve an ideal equilibrium if correctly understood and the need to pick a target that can be widely understood and can be implemented in a way that allows for verification of the central bank’s pursuit of its alleged target, in the spirit of Milton Friedman’s celebrated proposal of a constant growth rate for a monetary aggregate. Indeed, it can be viewed as a modern version of Friedman’s “k-percent rule” proposal, in which the variable that Friedman actually cared about stabilizing (the growth rate of nominal income) replaces the monetary aggregate that he proposed as a better proximate target, on the ground that the Fed had much more direct control over the money supply. On the one hand, the Fed’s ability to directly control broad monetary aggregates (the ones more directly related to nominal income in the way that Friedman assumed) can no longer be taken for granted, under current conditions; and on the other hand, modern methods of forecast targeting make a commitment to the pursuit of a target defined in terms of variables that are not under the short-run control of the central bank more credible. Under these circumstances, a case can be made that a nominal GDP target path would remain true to Friedman’s fundamental concerns.”

Exactly! NGDP targeting is exactly in the spirit of Friedman.

And Woodford goes on to quote one of the founding fathers of Market Monetarism:

“See, for example, (David) Beckworth (2011) for an argument to this effect. Beckworth notes that Friedman (2003) praised the accuracy of “the Fed’s thermostat,” for having reduced M2 growth during the period of increasing “velocity” in 1988-1997, and then increased M2 growth by several percent- age points during a period of decreasing velocity in 1997-2003. One might conclude that Friedman valued successful stabilization of nominal GDP growth more than strict fidelity to a “k-percent rule.”

See David’s take on Woodford here and here is what Scott Sumner has to say.

Related posts:
Friedman provided a theory for NGDP targeting
Michael Woodford endorses NGDP level targeting

Friedman’s Japanese lessons for the ECB

I often ask myself what Milton Friedman would have said about the present crisis and what he would have recommended. I know what the Friedmanite model in my head is telling me, but I don’t know what Milton Friedman actually would have said had he been alive today.

I might confess that when I hear (former?) monetarists like Allan Meltzer argue that Friedman would have said that we were facing huge inflationary risks then I get some doubts about my convictions – not about whether Meltzer is right or not about the perceived inflationary risks (he is of course very wrong), but about whether Milton Friedman would have been on the side of the Market Monetarists and called for monetary easing in the euro zone and the US.

However, today I got an idea about how to “test” indirectly what Friedman would have said. My idea is that there are economies that in the past were similar to the euro zone and the US economies of today and Friedman of course had a view on these economies. Japan naturally comes to mind.

This is what Friedman said about Japan in December 1997:

“Defenders of the Bank of Japan will say, “How? The bank has already cut its discount rate to 0.5 percent. What more can it do to increase the quantity of money?”

The answer is straightforward: The Bank of Japan can buy government bonds on the open market, paying for them with either currency or deposits at the Bank of Japan, what economists call high-powered money. Most of the proceeds will end up in commercial banks, adding to their reserves and enabling them to expand their liabilities by loans and open market purchases. But whether they do so or not, the money supply will increase.

There is no limit to the extent to which the Bank of Japan can increase the money supply if it wishes to do so. Higher monetary growth will have the same effect as always. After a year or so, the economy will expand more rapidly; output will grow, and after another delay, inflation will increase moderately. A return to the conditions of the late 1980s would rejuvenate Japan and help shore up the rest of Asia.”

So Friedman was basically telling the Bank of Japan to do quantitative easing – print money to buy government bonds (not to “bail out” the government, but to increase the money base).

What were the economic conditions of Japan at that time? The graph below illustrates this. I am looking at numbers for Q3 1997 (which would have been the data available when Friedman recommended QE to BoJ) and I am looking at things the central bank can influence (or rather can determine) according to traditional monetarist thinking: nominal GDP growth, inflation and money supply growth. The blue bars are the Japanese numbers.

Now compare the Japanese numbers with the similar data for the euro zone today (Q1 2012). The euro zone numbers are the red bars.

Isn’t striking how similar the numbers are? Inflation around 2-2.5%, nominal GDP growth of 1-1.5% and broad money growth around 3%. That was the story in Japan in 1997 and that is the story in the euro zone today.

Obviously there are many differences between Japan in 1997 and the euro zone today (unemployment is for example much higher in the euro zone today than it was in Japan in 1997), but judging alone from factors under the direct control of the central bank – NGDP, inflation and the money supply – Japan 1997 and the euro zone 2012 are very similar.

Therefore, I think it is pretty obvious. If Friedman had been alive today then his analysis would have been similar to his analysis of Japan in 1997 and his conclusion would have been the same: Monetary policy in the euro zone is far too tight and the ECB needs to do QE to “rejuvenate” the European economy. Any other view would have been terribly inconsistent and I would not like to think that Friedman could be so inconsistent. Allan Meltzer could be, but not Milton Friedman.

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* Broad money is M2 for Japan and M3 for the euro zone.

Related posts:

Meltzer’s transformation
Allan Meltzer’s great advice for the Federal Reserve
Failed monetary policy – (another) one graph version
Jens Weidmann, do you remember the second pillar?